Home / 31,335.12-46,989.72-13,315.68

Finding the Fourth Proportional to 31,335.12, 46,989.72 and 13,315.68

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Solution

The fourth proportional to 31,335.12, 46,989.72 and 13,315.68 is: 19,968.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,335.12 : 46,989.72 = 13,315.68 : x
  2. Step 2: Convert to fraction form
    31,335.12/46,989.72 = 13,315.68/x
  3. Step 3: Cross multiply
    31,335.12x = 46,989.72 × 13,315.68
  4. Step 4: Simplify right side
    31,335.12x = 625,700,074.81
  5. Step 5: Solve for x
    x = 625,700,074.81/31,335.12
  6. Step 6: Final answer
    x = 19,968.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.